Please help me I not know how to do these!

Comparison of methods for the scoring and statistical analysis of SF-36 health profile and summary measures: summary of results

Zigmanuir [339]

summary of results from the Medical Outcomes Study

<h3>What is mental component summary (MCS)?</h3>

By reducing the number of statistical comparisons and, consequently, the influence of chance, physical component summary (PCS) and mental component summary (MCS) measurements enable the testing of health outcome hypotheses. Results from 16 tests involving patients (N = 1,440) who took part in the Medical Outcomes Study were analyzed in order to see how effective they were in comparison to a profile of eight scores. Age, diagnosis, disease severity, concomitant disorders, acute symptoms, self-reported changes in health, and recovery from clinical depression were all factors that were compared between groups that were known to differ at one point in time or change over time. By contrasting the statistical outcomes for each measure with those for the best scales in the same tests, the relative validity (RV) of each measure was calculated. variations

To learn more about mental component summary (MCS) from the given link:

brainly.com/question/24516788

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4 0

2 years ago

Assume the random variable X has a binomial distribution with the given probability of obtaining a success. Find the following p

drek231 [11]

Answer:

$P(X=14)=(18C14)(0.8)^{14} (1-0.8)^{18-14}=0.2153$

$P(X=15)=(18C15)(0.8)^{15} (1-0.8)^{18-15}=0.2297$

$P(X=16)=(18C16)(0.8)^{16} (1-0.8)^{18-16}=0.1722$

$P(X=17)=(18C17)(0.8)^{17} (1-0.8)^{18-17}=0.0811$

$P(X=18)=(18C18)(0.8)^{18} (1-0.8)^{18-18}=0.0180$

And adding the values we got:

$P(X \geq 14)= 0.2153 +0.2297+0.1722+0.0811+0.0180=0.7164$

Step-by-step explanation:

Assuming this question: P(X≥14), n=18, p=0.8

Previous concepts

The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".

Solution to the problem

Let X the random variable of interest, on this case we now that:

$X \sim Binom(n=18, p=0.8)$

The probability mass function for the Binomial distribution is given as:

$P(X)=(nCx)(p)^x (1-p)^{n-x}$

Where (nCx) means combinatory and it's given by this formula:

$nCx=\frac{n!}{(n-x)! x!}$

And we want this probability:

$P(X \geq 14) = P(X=14) +P(X=15) +P(X=16)+P(X=17)+P(X=18)$

And we can find the individual proabilities using the probability mass function:

$P(X=14)=(18C14)(0.8)^{14} (1-0.8)^{18-14}=0.2153$

$P(X=15)=(18C15)(0.8)^{15} (1-0.8)^{18-15}=0.2297$

$P(X=16)=(18C16)(0.8)^{16} (1-0.8)^{18-16}=0.1722$

$P(X=17)=(18C17)(0.8)^{17} (1-0.8)^{18-17}=0.0811$

$P(X=18)=(18C18)(0.8)^{18} (1-0.8)^{18-18}=0.0180$

And adding the values we got:

$P(X \geq 14)= 0.2153 +0.2297+0.1722+0.0811+0.0180=0.7164$

5 0

3 years ago

Two minor league baseball players got a total of 250 hits. washington had 18 more hits than sanchez. find the number of hits for

sergejj [24]

Washington had 143 hits and Sanchez has 107 hits

3 0

3 years ago

Question 7 = 2 Points

anastassius [24]

Answer:

See below

Step-by-step explanation:

The budget is $600.

<u>Samantha spends the following amount:</u>

399.95 + 3*7.01 + 34.06 = 455.04

Now, she plans to buy w outfits which cost $75.88 each.

<u>The inequality for this is:</u>

455.04 + 75.88w ≤ 600

<u>Solving this we get:</u>

75.88w ≤ 600 - 455.04
75.88w ≤ 144.96
w ≤ 144.96 / 75.88
w ≤ 1.91

w = 1 is the only integer solution greater than zero

8 0

2 years ago

In a random sample of 60 shoppers 12 said that they only buy products that are on sale. If there are 3000 shoppers at the mall t

dimulka [17.4K]

Answer:

Number of shopper buy from sale [3,000shopper] = 600 (Approx.)

Step-by-step explanation:

Given:

Number of shopper in mall = 60

Number of shopper buy from sale = 12

Find:

Number of shopper buy from sale if total number number of shopper are 3,000

Computation:

Number of shopper buy from sale [3,000shopper] = 3000[Number of shopper buy from sale/Number of shopper in mall]

Number of shopper buy from sale [3,000shopper] = 3000[12 / 60]

Number of shopper buy from sale [3,000shopper] = 3000[1/5]

Number of shopper buy from sale [3,000shopper] = 600 (Approx.)

4 0

3 years ago